Android Question BLE setnotify

[Daniel-White]

Hi, chaps.

Simple question.

I am looking to implement this in BLE

manager.SetNotify("0000ffe0-0000-1000-8000-00805f9b34fb","0000ffe1-0000-1000-8000-00805f9b34fb",True)

But I receive in logs this:
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.bluetooth.BluetoothGattDescriptor.setValue(byte[])' on a null object reference

Another question, is it a must use manager.WriteData ?? before apply manager.SetNotify?

 

[Erel]

Another question, is it a must use manager.WriteData ?? before apply manager.SetNotify?

No.

Based on the error message the characteristic you specified doesn't support notifications.